基于信号注入法的电容电流测量仪研究

丁然, 王崇林, 朱金龙

丁然, 王崇林, 朱金龙. 基于信号注入法的电容电流测量仪研究[J]. 工矿自动化, 2007, 33(2): 26-29.
引用本文: 丁然, 王崇林, 朱金龙. 基于信号注入法的电容电流测量仪研究[J]. 工矿自动化, 2007, 33(2): 26-29.
DING Ran, WANG Chong-lin, ZHU Jin-long. Research of Measurement Apparatus of Capacitance Current Based on Signal-injection Method[J]. Journal of Mine Automation, 2007, 33(2): 26-29.
Citation: DING Ran, WANG Chong-lin, ZHU Jin-long. Research of Measurement Apparatus of Capacitance Current Based on Signal-injection Method[J]. Journal of Mine Automation, 2007, 33(2): 26-29.

基于信号注入法的电容电流测量仪研究

Research of Measurement Apparatus of Capacitance Current Based on Signal-injection Method

  • 摘要: 随着电缆在中压配电网的大量应用,系统电容电流水平不断增高。准确便捷地测量配电网系统对地电容电流成为该领域研究的热点。文章设计了一种基于信号注入法的电容电流测试仪,该测试仪采用直接数字频率合成(DDFS)技术产生变频电流信号,运用傅氏算法对中性点非直接接地系统的电容电流进行测量,具有较高的精度,使用方便、灵活。
    Abstract: Accompany with adoption of cable in medium voltage distribution network,the level of capa-citance current of the system increases.More and more researchers focus on how to measure the capacitance current to the ground of the distribution network system precisely and swiftly.The paper designed a measurement apparatus of capacitance current based on signal-injection method,which made use of direct digi-tal frequency synthetics(DDFS) technology to produce various frequency signal of current and made use of Fourier to measure the capacitance current of neutral non-valid grounded system.It has advantages of high precision,convenient and flexible for use.
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出版历程
  • 刊出日期:  2007-04-09

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